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Old 01-28-2016, 10:35 PM   #1
Major86
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Join Date: Sep 2015
Location: Martin, TN
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Quadrajet and Vacuum questions

1986 Silverado, sbc 350 / th350 trans, M4ME Q-jet with electric choke
Motor is stock bottom end, comp cam xe286h with new timing chain etc.
Capped vacuum on distributor. I'm wondering if I need all the vacuum lines that are hooked up to carb or if I can cap some. Most are capped except 2 coming from canister to front of carb and one from cruise module to front of carb. Any help would be great.
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Old 01-28-2016, 11:08 PM   #2
SkinnyG
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Location: Beautiful BC, Canada, eh?!
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Re: Quadrajet and Vacuum questions

Un-cap the vacuum advance and hook it up again. Not using it costs you fuel economy, and doesn't hurt power in the slightest.
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